“No one shall be held guilty of any criminal offence on account of any act or omission which did not constitute a criminal offence under the national or international law at the time when it was committed. Nor shall a heavier penalty be imposed that the one that was applicable at the time the criminal offence was committed.”
"This section applies where … a person aged under 18 is to be sentenced for…"
"This section applies where… a person is convicted of a serious [or specified] offence committed when he was aged under 1…"
“If, subsequent to the commission of a criminal offence, the law provides for a lighter penalty, that penalty shall be applicable”
“his detention remains the direct causal consequence of his indefinite sentence until his risk is judged by the independent Parole Board to be such as to permit his release on licence.” 31. It is only if the system of review breaks down or ceases to be effective could it possibly be the case that the detention becomes arbitrary: see R (Walker) v Secretary of State for Justice (Parole Board intervening)[2010] AC 553 as explained at paragraph 11 of Kaiyam and Haney. If such a state of affairs was reached, this would not be the consequence of the original sentence providing for arbitrary detention, but of subsequent events. It would not, therefore, be a matter for this court. It would be as a result of a failure by the Secretary of State properly to carry out the sentence of the court or a failure by the Parole Board. Thus it would be a matter for judicial review of the actions of the Secretary of State or the Parole Board by the procedures provided before the Administrative Court with the evidence necessary for such an application. 32. A final submission was made based on Mr Rule’s submissions in R v Docherty[2014] EWCA Crim 1197 ,[2014] 2 Cr App R (S) 76 . In that case the appellant was convicted of an offence of wounding with intent on13 November 2012 . As the provisions abrogating the sentence of IPP to which we have referred in paragraph 9 did not come into force until3 December 2012 , although enacted by Parliament on1 May 2012 , the judge applied, as he was bound to do, the law as set out in s.225 and following of the CJA 2003. He found that he was dangerous and sentenced him to IPP. Apart from the conventional submission that the sentence of IPP should not have been imposed, it was submitted that the imposition of such a sentence after Parliament had decided to abolish it was a breach of the ECHR (Articles 7, 5 or 14) and of the principle of what is known as the lex mitior. 33. As we understand the argument, it was submitted that there was unlawful discrimination against the appellant as he was being subjected to a sentence of IPP when Parliament enacted LASPO 2012 in May 2012 with effect from a date to be appointed, but he was nonetheless subject to that sentence by reason of the date of his conviction being between that date and the date the abolition was brought into force on3 December 2012 . It was also submitted that Article 7, as interpreted by the Strasbourg Court in Scoppola v Italy (no 2) (2010) 51 EHHR 12, required a court, in the event that the legislature had reduced the penalty between the time the crime was committed and the conviction, to impose the reduced penalty. This court did not accept these arguments, but a point of law was certified and permission to appeal was granted in February 2015. The appeal is to be considered by the Supreme Court in May 2016. 34. If the Supreme Court accepts the arguments advanced on behalf of Docherty, it can make no difference whatsoever to the present applications, as all were convicted and sentenced many years before Parliament enacted LASPO 2012 in May 2012 abolishing the sentence of IPP with effect from a date to be appointed. We cannot see how it can be suggested that a sentence lawfully and properly passed many years before Parliament enacted the change in the law can be invalidated by that subsequent change in the law by Parliament.”